Controller add-on device



FIG. 1 is a bottom view of a controller add-on device showing our new design.

FIG. 2 is a front view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a top view thereof.

FIG. 6 is a left side view of a controller add-on device mounted to a controller showing our new design.

FIG. 7 is a perspective view of a controller add-on device showing our new design with the connectors shown in different positions; and,

FIG. 8 is a bottom view of a controller add-on device mounted to a controller showing our new design.

Portions of the drawings shown in broken lines are environmental structure that is not part of the design. 

CLAIM The ornamental design for a controller add-on device, as shown and described. 